Copyright © 2002 Competition Construction
42
A
Window Panes R-value:
Higher Is Better
Higher Is Better
•The “R”-value
rates the insulation value of a
window. The higher the number
the better.
•The typical
single glazed window has
a rating of .88, double
glazed windows 1.6 -1.75
•People in
extreme climates should
choose windows with a low
U-factor and/or high R-value.
R-Values
(Higher
is Better!)
.88
1.75
Single Glazed
Double Glazed